Plowing mechanism.



C. L. ARCHAMBEAU.

PLOWING MBGHANISM.

APPLIUATION FILED MAR. z, 1912.

1,040,488, Patented Oct. 8, 1912.

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UNITED STATES yPATLNT ormoni.

CHARLES L. ARCHAMBEAU, OF GEYSERVILLE, CALIFORNIA, ASSIGNOR 0F ONE- HALFT0 DAVENPORT COZZENS AND WILLIAM D. WILLIAMSON, 0F GEYSERVILLE,

CALIFORNIA.

PLOWING MECHANISM.

Specification of Letters Patent.

Patented Oct. 8, 1912.

Application led March 2, 1912. Serial No. 681,161.

To all whom it may concern Be it known that I, CHARLES L. ARCHAM- BEAU,residing at Geyserville, in the county of Sonoma and State ofCalifornia, have invented a new and Improved Plowing Mechanism, of whichthe following is a specification.

This invention has for its object to provide a new and improvedconstruction of plows and more especially comprehends an improvedadjusting means designed for conveniently and quickly setting the plowsfor back-furrowing or dead furl-owing and for adapting the machine forbeing readily conveyed about the field.

My invention consists in the peculiar construction and novel arrangementof parts all of which will be hereinafter fully described, specificallypointed out in the appended claims and illustrated in the accompanyingdrawing, in which Figure l, is a perspective view of my improved plowingmechanism. Fig. 2, is a plan view, the lateral adjustments oi' the plowsbeing indicated by the dot and dash lines. Fig. .8, is a longitudinalsection of the same, the carrier or truck wheels being shown adjustedfor conveying the machine with the plows out of the ground, the plowingposition of the latter and the correlation of the carrier wheel deviceswhen at that position being indicated by dotted lines.

In the practical arrangement, my invention includes a centrallongitudinal beam l on the front end of which is bolted a head frame inthe nature of a horizontally disposed circular bar 2, having an eyeportion 20 at the front end for receiving the draft clevis 3.

10 designates a shifter bar, the reciprocal movements of which controlthe adjustments or sets of the plows.

4: designates a cross bar that extends over the front end of the shifterbar 10 and it has its ends connected to the head frame 2, bythe bolts 40that form stud or fulcrum bearings 41 for the oppositely disposedsegmental gears 6, the gear sections of which mesh with the oppositerack or gear edges 11-11 of the shifter bar 10, the latter also having alongitudinal slot l2 for engaging a pendent guide 51 on the cross bar 4.

7 7 designates a pair of oppositely disposed levers and these arefulcrumed on the stud bolts 40 to oscillate in the horizontal plane.Each lever 7 is bolted to the segmental gear 6 at its correspondingside, and the rear ends thereof are hingedly connected to the front endsof the plow beams 70 that carry the plows 71 of usual construction.

8 designates an arched shaped shaft journaled crosswise of the headframe 2, in. brackets 25 on the underside of the said frame and the stubends S0 of the said shaft carry carrier wheels 552-82.

9 designates the shifting lever mounted on the rear end of the mainbeam, and having the usual rack and pawl devices.

v90 designates a link rod that joins with the rear end of the shifterbar 12.

95 designates a lifting lever fulcrumed on a bearing 96 on the rear endof the beam l and its lower end supports the rear carrier or liftingwheel 97 which is so mounted with respect to the plow and the beams thatwhen the lever 95 is swung back to the position shown in F ig. 2. theplow frame with the plows is elevated to raise the plows from thcground. To sustain the frame and the plows at a proper rise above theground the arched cross shaft 8 has a pendent crank 86, which, throughthe link rod 87. joins with the shifting lever 9, the forward movementof which referred to, swings the front carrier wheels down and inconsequence raises that end of the machine.

From the foregoing description taken in connection with the drawings,the complete construction, the operation and the advantages of myinvention will readily appear.

By reason of the construction of the parts, as described and shown, theshifting of the bar 10 forwardly works the gears G, and in consequencespreads the plows, see dotted line X, and by shifting the bar 10rearwardly beyond the normal position shown and as indicated by thearrow y/'draws the plows together. it being understood that by reason ofthe hinged connection between the levers 7 and the plow beams, the plowsretain their parallel alinement with the main beam under all of theiradjustments.

lVhat I claim is:

1. A plowing mechanism comprising a central beam, a plow carrying beamat each side of and parallel with the cent-ral beam, a support on theforward end of the central beam, horizontally swingable levers mountedupon the said support, hinged connections that join the plow beams withthe levers, and

lever controlled means for simultaneously shifting the swingable leversto set the plows laterally to or from the central beam.

2. The combination with the central beam and the plow carrying beamslocated one to each side of and parallel with the central beam, of meansmounted on the central beam, said means including pivotal connectionswith the plow beams for laterally shifting both plow beams in unisontoward or from the central beam.

8. The Combination with the central beam, the plow carrying beamslocated one to each side of and parallel with the central beam, a headrframe mounted on the forward end of the central beam, a lever pivotallymounted on each side of the head beam to swing in the horizontal plane,hinged connections joining the said levers with the forward ends of theplow beams, and shiftable rack and gear devices connected with theswinging levers for swinging them upon their fulcrums whereby to set theplow laterally with respect to the central beam. n y 4. In a plowingmechanism of the-character described, the combination with the centralbeam, an annular head plate mounted on the forward end thereof, a crossbar having pivot bolt connections with the head plate at the outer endsthereof, a lever mounted on each of the pivot bolts to swing in thehorizontal plane, plow carrying beams pivotally connected with the saidlevers, a segmental rack connected with each of the said levers, havingthe pivot bolts as their' axis, a double faced rack bar for engaging thetwo segmental racks, and means for actuating the rack bar.

CHARLES L. ARCHAMBEAU.

Witnesses:

PETER T. Coon, E. G. WIsIoARvER.

Gopies'of this patent may be obtained for` five cents each, byaddressing the Commissioner of Patents, Washington, D. C.

